textproduct: Quad Cities

KEY MESSAGES

- Warm and dry stretch of weather to continue through Tuesday, with temperatures trending down and towards seasonable norms through the second half of the week. - There is a chance (25-40%) of light rain Wednesday, before mostly dry conditions return through the weekend.

SHORT TERM /THROUGH TUESDAY/

Issued at 1124 PM CST Sun Nov 8 2026

Beautiful early November weather was seen today, with widespread highs in the low to mid 60s. Given the dry air, evident by afternoon min RH values mainly in the 30-40% range and wall to wall sunshine, resulted in a large diurnal temperature swing (22 to 28 degrees) from this morning lows.

Rest of Tonight, surface ridge to slide east into Illinois, with winds becoming light under clear skies. Can't completely rule out some valley fog, but not anticipating anything more than that. Monday lows to drop into the mid to upper 30s.

Monday-Tuesday, if you liked the weather Sunday, then you will very much enjoy the start to the work week. Return flow develops Monday ahead of a cold front, with an occasional gusty southwest wind over 20 mph in the afternoon. Combined with 850mb temps rising into the 12- 13C range per the RAP/RRFS should result in afternoon highs in the mid to upper 60s. Looking upstream over Nebraska and South Dakota, the highs Sunday were in this range. A dry fropa is progged to move through Monday night, with cooler 850mb temps Tuesday resulting in highs only in the upper 50s/low 60s.

LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/

Issued at 1124 PM CST Sun Nov 8 2026

Tuesday Night-Wednesday, a strong shortwave to track over the Plains into IA/MO. There remains some subtle differences in the track of this wave with the 12z ECMWF/18z RRFS further south than the 18z GFS. This results in continued low confidence in the location of PoPs/rainfall due to available moisture. If the southern solution verifies than areas along and south of I-80 would see the best chances for rain, albeit light amounts. There could even be a scenario where much of the area remains dry except our far southwest over northeast MO and the far north along Hwy 20. Regardless, the wave will be progressive and rain amounts light, with NBM 24-hr probabilities for QPF > 0.1" only in the 15-35% range. Otherwise, a mostly cloudy day can be expected with high temperatures topping out in the middle 50s.

Wednesday Night-Sunday, another strong shortwave to drop south in the northwest flow aloft on Thursday. Both the deterministic and ensemble runs of the GFS are faster and wetter with this system compared to the ECMWF solutions. As a result, the NBM has slight chance (<20%) PoPs across northwest and north central IL. What is of higher confidence, is the colder air arriving behind this wave. High temperatures to drop closer if not a few degrees colder than normal into the low 40s Thursday and Friday, especially if clouds stick around longer. After Friday, a large area of high pressure and a building upper ridge over the central CONUS to bring another period of dry conditions and above normal temperatures.

AVIATION /06Z TAFS THROUGH 06Z TUESDAY/

Issued at 1124 PM CST Sun Nov 8 2026

VFR conditions to prevail through the period. Southwest winds to increase during the afternoon, with an occasional gust around 20kts.

DVN WATCHES/WARNINGS/ADVISORIES

IA...None. IL...None. MO...None.